También se encontraron restos microscópicos de tejido blando y fibras de colágeno en la superficie de algunos dientes de Tyrannosaurus rex

Approximate measurements of the Tarchia:

This species belongs to the true deer family (Cervidae) and is known for its large size and unique features in its bone structure

and is believed to be a close relative of the famous velociraptors

On the top of its head

Secodontosaurus willistoni Scutosaurus También se encontraron restos microscópicosSecodontosaurus willistoni, an extinct genus of synapsid, a group of mammal related animals that lived during the Permian period, approximately 275 million years ago. It was a member of a group known as therapsids, which were the predecessors of modern mammals. Secodontosaurus willistoni was a medium sized animal, with an estimated length of around 2. 7 meters. It had a large, elongated skull, with sharp, conical teeth that suggest it fed on small